Cerebrospinal fluid is produced by the
A) pia mater.
B) frontal sinuses.
C) ventricles.
D) choroid plexus.
E) arachnoid villi.
D) choroid plexus.
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The ________ nervous system is composed of the brain and spinal cord
A) autonomic B) peripheral C) central D) efferent E) afferent
Which of the following is not true of the cytoskeleton?
A. It refers to the cellular components of bone. B. It refers to a network of cytoplasmic filaments. C. It is important for cellular movement. D. It helps to determine a cell's shape. E. It includes actin filaments.
What structure forms the lower jaw?
A. mesonephros B. mandibular processes C. neural tube D. secondary palate E. somites
Within the filtration membrane, filtration slits are gaps between which of the following?
a) microvilli b) fenestrations c) macula densa cells d) pedicels